Williams



ets-Sheei; 1. S.

(No Model.) 3 She E. P. MARTIN & R. PRICE-WILLIAM TONGUE RAIL FOR RAILWAY SWITGHES.

Patented 001. 12, 1897.

(No Model 3 Sheets-Sheet 2L 7 E. P. MARTIN 86 R. PRICE-WILLIAMS. TONGUE RAIL FOR RAILWAY SWITCHES.

o. 591,412. Patented Oct. 12,1897,

V Imam?? v "ohms PETERS co. worouruo. WASHI (No Model.) 3 Sheets-Sheet 3.

E. P. MARTIN & R. PRICE-WILLIAMS.

TONGUE RAIL FOR RAILWAY SWITCHES.

No. 591,412. Patented Oct. 12,1897.

UNITED I STATES PATENT OFFICE.

EDWARD PRITCHARD MARTIN, OF DOWLAIS, AND RICHARD PRICE- WILLIAMS, OF LONDON, ENGLAND.

TONG U E-RAlL FOR RAILWAY-SWITCH ES.

SPECIFICATION forming part Of Letters Patent No. 591,412, dated October 12, 1897. Application flied November 13,1896. Sana. 611,987. (No model.)

T0 at whom, it may concern/.-

Be it known that we, EDWARD PRITCHARD MARTIN, residing at Dowlais Iron Works, Dowlais, in the county of Glamorgan, and RIOHARD PRICE-WILLIAMS, residing at 32 Victoria Street, London, (Westminster,) in the county of Middlesex, England, subjects of the Queen of Great Britain, have invented certain new and useful Improvements in Tongue-Rails for Railway-Switches, of which the following is a specification.

The improvements relate to the manufacture of railway-switch tongue-rails in which throughout the greater part of their length every cross-section is of approximately the same area from lengths of rails, partlyformed rails, blooms, or bars.

A tongue-rail for railway-switches according to our invention has a projection along the inner side of the tapering portion to fit below the head of a stock or fixed rail. The top surface of the tapering portion preferably slopes down from the level of the stock-rail to the top of .the projection, and the rail is preferably of substantially the same area throughout the greater part of its length.

We preferably form'our improved tonguerails by rolling. This we do by making the circumference of the rolls equal, approximately, to the length of rail or bar to be acted on and by making the grooves around such rolls of such a form that when the rolls are form until at the end or nearly at the end of one revolution the passage between'the rolls corresponds to the form to which the extremity of the tongue-rail is to be brought. In

'this section-that is, at the extremity of the tongue-rail-the whole or greater part of theswitch; and Figs. 3 to 10 are sections, to a larger scale, on the lines 3 3 to 10 10, Fig. 2, respectively. Fig. 11 is an elevation (to the same scale as the sections) of the end part of the tongue-rail.

The circumference of the rolls shown in Fig. 1 is approximately equal to the length of rail to be acted on, and the grooves in them are of such a form as to produce the tonguerails shown at Figs. 2 to 11. It will be observed that the end of the tongue-rail (see Figs. 2 and 3) has a wide base. This prevents the pressure on the rail from tilting it and then opening the switch. It will be observed also (see Fig. 2) that the tongue-rail is slightly twisted in a horizontal plane, so as to fit snugly against the stock-rail.

The rails may be passed once or more between the rolls in the same or in different grooves. In the case of their being passed through the same grooves the rolls would be set nearer and nearer together each time the tongue-rail was passed between them.

In cases where it is desired to increase the width of the foot of the tongue-rail in place of rolling from a double-headed rail, as shown, it is more convenient to employ a flat-footed rail or bloom.

The rails when rolled may be finished by pressure in dies or otherwise.

What we claim is 1. A tongue-rail for railway-switches, of substantially the same sectional area throughout the greater part of its length, having a projection all along the inner side of the tapering portion to fit below the head of a stock or fixed rail. g

' 2. A tongue-rail for railwayswitches, of substantially the same sectional area throughout the greater part of its length, having a projection all along the inner side of the tapering portion to fit below the head and alongside the web. of a stock or fixed rail, the top surface of the tapering portion sloping down from the level of the stock-rail to thetop of the projection.

EDWARD PRITCHARD MARTIN. RICHARD PRICE-WILLIAMS. Witnesses:

ROBERT E. RANSFORD, JOHN H. WHITEHEAD. 

